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Document Title |
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EP1575195B1 |
Receiver circuit with an optical receiving device and bandwidth dependent amplification
Abstract not available
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EP1579433B1 |
ARRANGEMENT FOR READING AN INFORMATION CARRIER
Abstract not available
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7215883 |
Methods for determining the performance, status, and advanced failure of optical communication channels
Methods of determining the performance and the advanced failure of an optical communication channel. Performance of an optical communication channel may be determined by receiving light signals,...
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7002131 |
Methods, systems and apparatus for measuring average received optical power
Methods, systems and apparatus for measuring average received optical power by an optical receiver. A TO-package for a packaged optical receiver is disclosed having a pin-out configuration for...
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EP1575195A2 |
Receiver circuit with an optical receiving device
The circuit has an optical receiver device (1), a number of amplifiers (2, 3, 4) connected to the receiver device and a circuit arrangement (SIN1, SIN2, SIN3; SV1, SV2, SV3; SOUT1, SOUT2, SOUT3)...
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6724829 |
Automatic power control in a data transmission system
A system for use in transmitting digital data includes a modulation element that receives block of digital data and modulates each block using one of at least two modulation types, such as QPSK and...
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6713749 |
Monolithic loss-of-signal detect circuitry
A Loss Of Signal (LOS) circuit in an opto-electronic receiver circuit. The LOS circuit includes a current to voltage converter and a comparator circuit. The current to voltage circuit receives a...
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6614948 |
Electrically switchable optical elements using wavelength locked feedback loops
Electrically switchable optical elements, such as application specific integrated elements including filters, lenses and switches, are combined with wavelength locked feedback loops. Electrically...
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6362467 |
Fast-switching comparator with hysteresis
Fast switching may be achieved in a comparator by driving a comparator stage with a gain amplifier and feeding back the output signal from the comparator to the gain amplifier.
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6275114 |
Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications
A transimpedance amplifier according to the present invention is designed for high-speed fiber optic communications. The transimpedance amplifier preferably includes an input stage, a second stage...
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6172566 |
Low noise amplifier
A low noise amplifier circuit is operable in two gain modes: high gain (approximately 15 dB) and low gain or attenuation (approximately -5 dB), with a number of gain paths. In the low gain or...
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6037841 |
Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications
A transimpedance amplifier according to the present invention is designed for high-speed fiber optic communications. The transimpedance amplifier preferably includes an input stage, a second stage...
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EP0977353A2 |
A wide dynamic range transimpedance amplifier
An integrated circuit transimpedance amplifier for an optical receiver is formed by a bipolar process comprising fixed value resistive elements in a network to provide AGC. The resistive elements...
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5589682 |
Photocurrent detector circuit with high sensitivity, fast response time, and large dynamic range
A photocurrent detector circuit includes a photodiode coupled to an input terminal of a first operational amplifier. A first resistor has a first end coupled to the photodiode and a second end...
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5565672 |
Optical transimpedance receiver with compensation network
An apparatus and method is provided that improves the dynamic range of an optical transimpedance receiver. The receiver includes a photodetector, a transimpedance front end amplifier and a...
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5548398 |
Illuminant discriminator providing detection of high efficiency illumination
An illuminant discriminator distinguishes a range of separate illuminants, including high efficiency fluorescent lighting, by modifying the frequency response of a signal output from a...
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5508836 |
Infrared wireless communication between electronic system components
A wireless infrared pulse-transmitting system for communication with electronic components. The receiver for such a system has radically reduced current (and power) values, which permit a...
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5455705 |
Transimpedance amplifier for optical receiver
A transimpedance amplifier for an optical receiver includes an integrator circuit for receiving a current input from a photodetector; an integrator capacitance between the input and output of the...
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5311353 |
Wide dynamic range optical receivers
A wide-dynamic range optical receiver amplifier is provided by using two separate amplifiers. The first amplifier is a low-impedance input, low-noise, high-gain amplifier, preferably a...
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